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John Dasilva
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Prince George, CA
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Patents Grants
last 30 patents
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Patent Grant
Personnel safety utilizing time variable frequencies
Patent number
8,248,263
Issue date
Aug 21, 2012
PSST Mobile Equipment
Richard Clayton Shervey
B66 - HOISTING LIFTING HAULING
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Patent Grant
Radio frequency identification based personnel safety system
Patent number
8,115,650
Issue date
Feb 14, 2012
PSST Mobile Equipment Ltd. - Richard Shervey
John Dasilva
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
PERSONNEL SAFETY UTILIZING TIME VARIABLE FREQUENCIES
Publication number
20100289662
Publication date
Nov 18, 2010
John Dasilva
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Marine personnel safety system
Publication number
20090219160
Publication date
Sep 3, 2009
Richard Clayton Shervey
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information
Patent Application
Radio frequency identification based personnel safety system
Publication number
20080018472
Publication date
Jan 24, 2008
John Dasilva
G08 - SIGNALLING